Global Patent Index - EP 1889927 A4

EP 1889927 A4 20091028 - GRAIN ORIENTED ELECTROMAGNETIC STEEL SHEET HAVING EXCELLENT FILM ADHESION AND PROCESS FOR PRODUCING THE SAME

Title (en)

GRAIN ORIENTED ELECTROMAGNETIC STEEL SHEET HAVING EXCELLENT FILM ADHESION AND PROCESS FOR PRODUCING THE SAME

Title (de)

KORNORIENTIERTE ELEKTROMAGNETISCHE STAHLPLATTE MIT HERVORRAGENDER FILMHAFTUNG UND HERSTELLUNGSVERFAHREN DAFÜR

Title (fr)

FEUILLE D'ACIER ELECTROMAGNETIQUE A GRAIN ORIENTE PRESENTANT UNE EXCELLENTE ADHERENCE A UNE PELLICULE ET SON PROCEDE DE PRODUCTION

Publication

EP 1889927 A4 20091028 (EN)

Application

EP 06756609 A 20060519

Priority

  • JP 2006310509 W 20060519
  • JP 2005149831 A 20050523

Abstract (en)

[origin: EP1889927A1] The present invention provides oriented magnetic steel plate with excellent coating adhesion, in particular coating edge peeling resistance, that is, oriented magnetic steel plate with excellent coating adhesion containing, by mass%, Si: 1.8 to 7% and having a primary coating having forsterite as its main ingredient on its surface, said oriented magnetic steel plate characterized in that said primary coating contains one or more of Ce, La, Pr, Nd, Sc, and Y in an areal weight per side of 0.001 to 1000 mg/m 2 ; characterized in that said primary coating contains Ti in an areal weight per side of 1 to 800 mg/m 2 ; and characterized in that said primary coating contains one or more of Sr, Ca, and Ba in an areal weight per side of 0.01 to 100 mg/m 2 .

IPC 8 full level

C21D 1/70 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/60 (2006.01); H01F 1/16 (2006.01); H01F 1/18 (2006.01)

CPC (source: EP KR US)

C21D 1/70 (2013.01 - EP US); C21D 8/12 (2013.01 - EP US); C21D 8/1272 (2013.01 - KR); C21D 8/1283 (2013.01 - EP US); C22C 38/001 (2013.01 - KR); C22C 38/002 (2013.01 - KR); C22C 38/005 (2013.01 - KR); C22C 38/008 (2013.01 - KR); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - KR); C22C 38/60 (2013.01 - EP KR US); H01F 1/14775 (2013.01 - EP US); Y10T 428/12007 (2015.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1889927 A1 20080220; EP 1889927 A4 20091028; EP 1889927 B1 20150701; CN 101180411 A 20080514; CN 101180411 B 20120111; JP 2012214902 A 20121108; JP 5230194 B2 20130710; JP 5739840 B2 20150624; JP WO2006126660 A1 20081225; KR 100979785 B1 20100903; KR 20080010439 A 20080130; US 2009047537 A1 20090219; US 7887646 B2 20110215; WO 2006126660 A1 20061130

DOCDB simple family (application)

EP 06756609 A 20060519; CN 200680017978 A 20060519; JP 2006310509 W 20060519; JP 2007517906 A 20060519; JP 2012134001 A 20120613; KR 20077027409 A 20060519; US 92059106 A 20060519